Multi-probe leakage detecting device for efficient filter

Abstract

The invention relates to a multi-probe leakage detecting device for an efficient filter. The device comprises an upstream sampling probe, a downstream sampling probe group, a particle counter group, a particle counter synchronous acquisition card and an industrial control computer. In a work process of the device, the downstream sampling probe group is driven by a two-dimensional scanning mechanism to scan in the downstream of a detected filter at a constant speed; the particle counter synchronously acquisition card uploads particle counting acquired by all the particle counters in real time according to a predetermined sampling interval and sampling number of times to the industrial control computer; the industrial control computer processes data in real time to obtain transmissivity of points of the detected filter so as to judge whether the detected efficient filter has leakage points or not and the specific coordinates of the leakage points. The device can be used for quickly and effectively scanning the detected filter to detect leakages, thereby providing a basic guarantee for batched online detection of the efficient filter.

Description

technical field [0001] The invention relates to a high-efficiency or ultra-high-efficiency air filter, in particular to a multi-probe leak detection device for a high-efficiency filter. Background technique [0002] The development of modern science and technology has put forward higher requirements for the cleanliness of ambient air, especially in industries such as microelectronics, biology, medical treatment, pharmaceuticals, precision machinery, chemicals, and aerospace. High-efficiency / ultra-high-efficiency filters are the core key equipment for ultra-clean environments, and their performance is directly related to the level of ultra-clean environments. Effective and reliable detection devices are the guarantee for the production of high-quality air filters. Traditional detection methods for high-efficiency / ultra-high-efficiency filters, such as sodium flame method, oil mist method, fluorescence method, DOP diameter counting method, total efficiency method, etc., can no...

AI Technical Summary

Problems solved by technology

In order to ensure the quality, high-efficiency filters must be scanned one by one for leak detection. The current high-efficiency filter scanning test bench is mostly a single-probe system, such as the patent "a high-efficiency ultra-high-efficiency filter scanning test bench" with the authorized announcement number CN2901295Y , there is a sampling probe in the upstream and downstream of the single-probe system, which are used to collect the number of particles in the upstream and downstream respectively. This configuration greatly limits the efficiency of scanning leak detection

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